Xytu® TT-90

TT-90 is a hydrophobically modified alkali-swellable emulsion (HASE) rheology modifier intended for water-based emulsion paints. Its selection should consider medium-shear viscosity, flow and leveling in the finished formulation. Check the binder system, formulation pH and addition procedure during trials.

TT-90 is a milky-white, anionic liquid thickener with a low as-supplied viscosity for easy addition. It can be used alone or with other types of thickeners in emulsion paints and is compatible with a range of emulsions. It offers low odor, spatter resistance and good thermal stability.

Directions for Use

Adjust the formulation pH to 8-9 before addition. Dilute with water at a product-to-water ratio of 1:4 and add slowly. The source does not specify whether the dilution ratio is by mass or volume. Recommended dosage: 3-5% of formulation mass, measured as supplied. Determine the exact dosage in preliminary trials before paint preparation, according to the emulsion and required final viscosity.

Packaging and Storage

Store away from light in a cool, dry place at 5–35°C with packaging intact. Reseal immediately after each use and use promptly after opening. Shelf life is 12 months from production.

Related application

Review water-based coating formulation materials for rheology, foam control and binder selection before discussing your emulsion paint formulation.

Test Conditions and Selection

The as-supplied product pH (2-4) differs from the formulation pH (8-9) required before addition. The 3-5% dosage is based on the product as supplied, not the diluted mixture. Confirm dilution-ratio basis and density test temperature when needed.

Technical Documents and SDS

TT-90 English TDS | TT-90 Chinese TDS.

The English translation was prepared on 25 October 2026 from the Chinese TDS. The original gives no issue or revision date; the translation date is not an original revision date.

Request the current TT-90 SDS and technical clarification. Specify the required document language and destination country.

Comparing Rheology Modifiers

Compare TT-40 associative polymer thickener, TT-60 alkali-swellable acrylic thickener and TT-90 against the required finished-paint rheology. TT-40 is not identified here as HEUR or HASE. Record low-, medium- and high-shear measurements with the instrument, temperature and method, together with leveling and sag observations. The supplied-product Brookfield viscosity is not a finished-paint rheology curve.

Browse thickeners and rheology modifiers or download TT-series technical documents.

Read the coating material selection guide and comparison checklist for related product choices and trial records.